Today is National Paranormal Day, so if your walls start bleeding or your kid starts saying things in a flat, creepy voice like, “She says she’s in pain and we need to let her in,” don’t say we didn’t warn you.

And here are some results from a new survey in honor of the holiday . . .

1.  80% of Americans say they believe in ghosts.  That includes 45% who believe but have never seen one . . . and 35% who believe BECAUSE they’ve seen one.

2.  90% of people say they’re scared of paranormal activities.

3.  12% think the U.S. government knows more about aliens than it’s revealing.

4.  And 4% think they live in a haunted house.